diff --git a/c/src/exec/sapi/src/posixapi.c b/c/src/exec/sapi/src/posixapi.c
index 481d640c0b..b06fa01a6f 100644
--- a/c/src/exec/sapi/src/posixapi.c
+++ b/c/src/exec/sapi/src/posixapi.c
@@ -27,16 +27,19 @@
 #ifdef RTEMS_POSIX_API
 
 #include <sys/types.h>
+#include <mqueue.h>
 #include <rtems/config.h>
 #include <rtems/score/object.h>
 #include <rtems/posix/cond.h>
 #include <rtems/posix/config.h>
 #include <rtems/posix/key.h>
+#include <rtems/posix/mqueue.h>
 #include <rtems/posix/mutex.h>
 #include <rtems/posix/priority.h>
 #include <rtems/posix/psignal.h>
 #include <rtems/posix/pthread.h>
 #include <rtems/posix/ptimer.h>
+#include <rtems/posix/semaphore.h>
 #include <rtems/posix/time.h>
 
 /*PAGE
@@ -92,6 +95,14 @@ void _POSIX_API_Initialize(
     api_configuration->maximum_mutexes
   );
 
+  _POSIX_Message_queue_Manager_initialization(
+    api_configuration->maximum_message_queues
+  );
+
+  _POSIX_Semaphore_Manager_initialization(
+    api_configuration->maximum_semaphores
+  );
+
   _POSIX_Timer_Manager_initialization ( api_configuration->maximum_timers );
 }
 
diff --git a/cpukit/sapi/src/posixapi.c b/cpukit/sapi/src/posixapi.c
index 481d640c0b..b06fa01a6f 100644
--- a/cpukit/sapi/src/posixapi.c
+++ b/cpukit/sapi/src/posixapi.c
@@ -27,16 +27,19 @@
 #ifdef RTEMS_POSIX_API
 
 #include <sys/types.h>
+#include <mqueue.h>
 #include <rtems/config.h>
 #include <rtems/score/object.h>
 #include <rtems/posix/cond.h>
 #include <rtems/posix/config.h>
 #include <rtems/posix/key.h>
+#include <rtems/posix/mqueue.h>
 #include <rtems/posix/mutex.h>
 #include <rtems/posix/priority.h>
 #include <rtems/posix/psignal.h>
 #include <rtems/posix/pthread.h>
 #include <rtems/posix/ptimer.h>
+#include <rtems/posix/semaphore.h>
 #include <rtems/posix/time.h>
 
 /*PAGE
@@ -92,6 +95,14 @@ void _POSIX_API_Initialize(
     api_configuration->maximum_mutexes
   );
 
+  _POSIX_Message_queue_Manager_initialization(
+    api_configuration->maximum_message_queues
+  );
+
+  _POSIX_Semaphore_Manager_initialization(
+    api_configuration->maximum_semaphores
+  );
+
   _POSIX_Timer_Manager_initialization ( api_configuration->maximum_timers );
 }